Saint-Denis is at its most pleasant from mid May to mid November. For sun, aim for mid November to mid January; for walking, go from late June to early July.
When to go five ratings · thirty-six ten-day sections · click a cell to read it
The sun season here runs from mid November to mid January, with a second spell from April to early May. It peaks in early December, at 72. The weakest stretch is from late June to July, when it drops to 15, mostly because it is too cool. The clearest skies come in December, when the sky is typically 52% covered at midday (partly cloudy).
For being outside, go from mid May to mid November. It peaks in mid September, at 85. Avoid mid February to March for this: it falls to 10, mostly because it is too hot.
The walking season here runs from late June to early July. It peaks in early July, at 60. That is a short window, about three weeks a year. The weakest stretch is from December to early April, when it drops to 3, mostly because it is too warm.
The year, measured
The average temperature in Saint-Denis over the whole year is 24°C. January is the hottest month, with highs of about 29°C; August is the coldest, with lows of about 19°C. Saint-Denis has no sharply defined rainy season: the chance of rain on a given day runs from 4% in November, the driest month, to 12% in January, the wettest. Winds in Saint-Denis are highest in July, averaging 6.1 m/s (22 km/h), and lightest in November, at 4.9 m/s (18 km/h). The prevailing wind is from the E. The clearest skies in Saint-Denis come in June, when the sky is typically 58% covered; November is the cloudiest month, at 68%.
Month by month Saint-Denis climate by month: average temperatures year round · click a month to read it
| Month | High | Low | Feels like | Chance of rain | Cloud | Wind | Being outside | Sun | Walking |
|---|---|---|---|---|---|---|---|---|---|
| January | 29°C | 24°C | 30°C | 12% | 63% | 5.1 m/s | 17 | 57 | 4 |
| February | 28°C | 23°C | 28°C | 11% | 64% | 5.4 m/s | 16 | 55 | 5 |
| March | 28°C | 23°C | 29°C | 12% | 61% | 5.2 m/s | 15 | 54 | 4 |
| April | 28°C | 23°C | 27°C | 11% | 60% | 5.3 m/s | 30 | 57 | 10 |
| May | 27°C | 21°C | 25°C | 5% | 59% | 5.4 m/s | 58 | 50 | 24 |
| June | 25°C | 20°C | 22°C | 9% | 58% | 5.9 m/s | 76 | 26 | 45 |
| July | 25°C | 20°C | 21°C | 7% | 61% | 6.1 m/s | 80 | 17 | 56 |
| August | 25°C | 19°C | 22°C | 6% | 64% | 5.8 m/s | 81 | 21 | 53 |
| September | 26°C | 20°C | 22°C | 5% | 62% | 6.0 m/s | 82 | 23 | 50 |
| October | 27°C | 22°C | 25°C | 5% | 63% | 5.1 m/s | 69 | 47 | 27 |
| November | 28°C | 23°C | 27°C | 4% | 68% | 4.9 m/s | 53 | 61 | 14 |
| December | 29°C | 24°C | 28°C | 6% | 59% | 5.3 m/s | 30 | 65 | 5 |
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Saint-Denis weather by season
Year round, Saint-Denis has days of about 25°C at their warmest in July, its coolest month, and 29°C in January, its warmest; the coolest hours of the day run from 19°C to 24°C through the year, and the average temperature over the year is 24°C around the clock. Rain is most likely around January and least likely around November. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Saint-Denis weather in winterJune to August
Winter in Saint-Denis has typical daily highs of about 25°C and lows of about 20°C, with a 7% chance of rain on a given day.
Saint-Denis weather in springSeptember to November
Spring in Saint-Denis has typical daily highs of about 27°C and lows of about 21°C, with a 5% chance of rain on a given day.
Saint-Denis weather in summerDecember to February
Summer in Saint-Denis has typical daily highs of about 28°C and lows of about 24°C, with a 10% chance of rain on a given day.
Saint-Denis weather in autumnMarch to May
Autumn in Saint-Denis has typical daily highs of about 27°C and lows of about 22°C, with a 9% chance of rain on a given day.
When is the rainy season in Saint-Denis?
Saint-Denis has no sharply defined rainy season: the chance of rain on a given day runs from 4% in November, the driest month, to 12% in January, the wettest.
What time of year is Saint-Denis windiest?
Winds in Saint-Denis are highest in July, averaging 6.1 m/s (22 km/h), and lightest in November, at 4.9 m/s (18 km/h). The prevailing wind is from the E.
What is the average temperature in Saint-Denis year round?
The average temperature in Saint-Denis over the whole year is 24°C. January is the hottest month, with highs of about 29°C; August is the coldest, with lows of about 19°C.
Where to go instead in late February, the weakest time here for being outside
How this is worked out
Every figure is a decade of weather-station observations blended into one typical year, in ten-day sections. The ratings, the chart and the feels-like column are read at midday local solar time. Being outside is the Easy outdoors rating, Sun is Sunbathing and Walking is Active outdoors, each out of 100: Good from 55, Ideal from 80. They describe what a time of year is usually like here, not a forecast. The dotted links open the map at that time of year; set its time of day to midday to see these numbers.